Your analysis is not only wrong but straight up defamation.
Bitcoin Consultancy LTD is a UK Limited company which is neither owned nor owns any other company.
Intersango LTD is a UK Limited company which is neither owned nor owns any other company.
Bitcoinica LP is a New Zealand Limited Partnership.
Core Credit LTD is a New Zealand Limited Company and the General Partner of Bitcoinica LP.
Core Credit LTD was renamed to Bitcoinica Consultancy LTD significantly after the events occurred.
If someone actually does file a lawsuit (s) they are simply going to sue all of the above and the individuals involved that live in each of the jurisdictions that they sue in. They will have to file lawsuits in the UK and New Zealand for maximum effectiveness.
The way it works in the real world, name everyone and see what sticks.
What makes this very different then the other hacks, is that what was stolen as USD.